Visual Studio 2008 always saves SLN file on exit

Question

Got a bit of a weird problem. I'm checking a solution out of TFS source control, and not making any changes to it; just opening it using the SLN file. If I then close Visual Studio (or do a Save All), Visual Studio prompts me to save the SLN file. Even if I do (by overwriting it, it's a read-only file), it continues to do this every time I open and close the solution, as if I'd added a project or something. Why would Visual Studio do this? What's causing it to think the solution has changed and needs saving?

Answer 1

OK, problem solved. As we're using TFS for source control, you're meant to check in the SLN file's corresponding .vssscc file. As we'd checked in the .vspscc for the various projects the SLN file pointed to but not the SLN's .vssscc file, Visual studio didn't consider the solution to be bound. :-)

Fixed it by going to File | Source Control | Change Source Control, then binding the SLN file to the solution's root dir on the TFS server. This created the solution's .vssscc file, which we've checked into source control. Subsequent checkouts now don't cause the problem.

Answer 2

I would start by letting it save the solution and then doing a visual diff of the version that it saved vs the one held in source control to see what the problem is. It could just be white space formatting. Also, are you the only person suffering this (if others are using the same solution?)